<!DOCTYPE html>
<html xmlns:th="http://www.thymeleaf.org">
<head>
    <head th:fragment="static">
        <script th:src="@{/webjars/jquery/3.3.1/jquery.js}"></script>
    </head>
</head>
<body>
 <div>
     I am Common Head !!
 </div>

</body>
</html>